64 YEARS OLD, NIGHT SWEATS SINCE FEBRUARY, EXTREME FATIGUE, MY

64 YEARS OLD, NIGHT SWEATS SINCE FEBRUARY, EXTREME FATIGUE, MY ARTHRITIS HURTS ALL THE TIME, ESPECIALLY MY NECK. HEADACHES EVERY DAY. MY CBC SHOWED .2% IMMATURE GRANULOCYTES. RBC AND WBC WERE NORMAL. FAMILY HISTORY OF LEUKEMIA, AND I AM WORRIED, BUT MY DOCTOR IS NOT. IS THIS ALL IN MY HEAD?

I have gone from being very healthy and energetic to extreme fatigue and daily headaches. I hear that my tests are normal, but I want to feel better, and don't know what to do. Every time I see the doctor it costs over $100, and I walk out of the office feeling like I'm making things up. I'm not. What can I do next?